15. In 2010, BodyRock Sport collaborated with designer Joseph Knight of Knight & Hammer on this $1,850 sports bra. The chains detach to make a necklace and matching charm bracelet, so it's really like three pieces in one.

13. In April 2014, Nate D. Sanders auctioned off a "custom-made" black lace push-up bra and matching thong supposedly worn by Julia Roberts in Erin Brockovich for $3,050. The best thing about this particular auction is the "Certificate of Authenticity" the website claims was issued by Universal Studios, but which was obviously printed on a home computer circa 1994. The gold star sticker is an especially nice touch, don't you think?

12. In 2012 PETA India auctioned off all the costumes from the Bollywood erotic thriller Jism 2 to help fund their homeless dog adoption campaign, including underwear worn by lead actress and former porn star Sunny Leone. PETA never disclosed exactly how much they made from the auction, but given how hugely popular Bollywood films are and how many weirdos there are willing to drop ridiculous amounts of money on used celebrity underwear (see above), you gotta imagine it was a lot.

11. According to USA Today, in 2008, the late Anna Nicole Smith's former boyfriend, Larry Birkhead, paid $2,800 at auction for a set of lingerie worn by Smith during a Playboy shoot. At the time, Birkhead claimed the pink bustier and white negligee were intended as keepsakes for his and Smith's then 1-year-old daughter, Dannielynn.

10. In 2013, Bordelle created a Christmas capsule collection for U.K. department store Selfridges, which included the "Roxelana Girdle Crystal Dress" for $4,700. I know the word "girdle" is a technical term, but I expect a sexier name for $4,700, especially for something this gorgeous.

9. In 2011, an anonymous bidder bought a red La Perla lingerie set worn by Kylie Minogue on the cover of her 2012 calendar for $7,950. Of course the bidder was anonymous. No doubt Christie's, which conducted the auction to benefit Minogue's StudyVox charity, prides itself on its discretion when it comes to the sale of pre-worn celebrity lingerie.

8. In 2013, a floor-length black negligee once belonging to Monica Lewinsky was sold at auction for just over $12,000 as part of a 33-piece collection of "memorabilia" that was submitted as evidence during the Clinton/Lewinsky scandal. According to The Huffington Post, Monica thought she'd get closer to $50,000 for the collection, which did not include her infamous blue dress but did include an unopened box of slightly crushed presidential M&M'S.

7. In 2002, jeweler Uwe Koetter created a gold, pearl, and diamond chastity belt for a private client in South Africa for $20,000. This thing makes Samantha's pearl thong look like a pair of pajama jeans. There is no way any woman would buy this for herself, meaning someone must have bought it for her, making this truly the worst gift ever.

6. In 2007, a lingerie show in Shenyang City, in northern China, featured a yellow gold lingerie set valued at more than $26,000. Apparently, the piece took over four months to make and was on display for three weeks, but never sold, shocking absolutely no one because, of course, that's what happens when you try to sell expensive lingerie that hasn't been worn by a celebrity.

5. In 2011, the sheer dress, bra, and briefs worn by Kate Middleton at a 2002 St. Andrews University fashion show attended by Prince William, sold at auction for over $125,000. Even the designer, Charlotte Todd (right), can't help but laugh at how ridiculous this is.

3. Although Victoria's Secret has created many $1 million+ bras over the years as part of their "Fantasy" line, none were ever as extravagantly expensive as the $12.5 million diamond-encrusted bra worn by Heidi Klum in the 2001 Victoria's Secret Fashion Show. Honestly, it looks a little tight, but I guess it must be pretty pricey to go up a cup size when your bra is made of diamonds. #DiamondBraProblems

2. Although Heidi's was the most expensive bra ever made, Gisele Bündchen's ruby- and diamond-encrusted bra and underwear from the 2000 Victoria's Secret Fashion Show, valued at $15 million, holds the record for the most expensive lingerie set ever made. The panty lines are a real bitch, but that's the price you pay when you cover your underwear in rubies.

1. In 2012, Molly Sims modeled a diamond "bikini" designed by Susan Rosen in the Sports Illustrated Swimsuit Issue worth an estimated $30 million.Guinness World Records may put Victoria's Secret on the top of the "Most Expensive Bras" list, but let's get real, this is as much lingerie as it is a swimsuit. Heck, it's as much dental floss as it is a swimsuit.